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You searched for: creator:"Dario F."
[image]Ave Maria... Oh Mary - Dario F.

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[texts]Localization properties of driven disordered one-dimensional systems - Dario F. Martinez
We generalize the definition of localization length to disordered systems driven by a time-periodic potential using a Floquet-Green function formalism. We study its dependence on the amplitude and frequency of the driving field in a one-dimensional tight-binding model with different amounts of disorder in the lattice. As compared to the autonomous system, the localization length for the driven system can increase or decrease depending on the frequency of the driving...
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[texts]Delocalization induced by low-frequency driving in disordered superlattices - Dario F. Martinez
We study the localization properties of disordered semiconductor superlattices driven by ac-fields. The localization length of the electrons in the superlattice increases when the frequency of the driving field is smaller than the miniband width. We show that there is an optimal value of the amplitude of the driving field for which the localization length of the system is maximal. This maximum localization length increases with the inverse of the driving frequency.
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